<template>
    <div class="login-bg">
        <div v-for="n in 5" :key="n" />
    </div>

    <div class="login">
        <el-form ref="loginRef" :model="loginForm.model" :rules="loginForm.rules" class="login-form">
            <h3 class="title">nest-admin后台管理系统</h3>
            <el-form-item prop="username">
                <el-input v-model.trim="loginForm.model.username" maxlength="10" type="text" size="large"
                    auto-complete="off" placeholder="账号">
                    <template #prefix>
                        <!-- <svg-icon icon-class="User" class="input-icon" /> -->
                        <User class="input-icon" />
                    </template>
                </el-input>
            </el-form-item>
            <el-form-item prop="password">
                <el-input v-model="loginForm.model.password" maxlength="20" type="password" size="large"
                    auto-complete="off" placeholder="密码" @keyup.enter="handleLogin">
                    <template #prefix>
                        <Lock class="input-icon" />
                    </template>
                </el-input>
            </el-form-item>
            <el-form-item prop="code" v-if="authCodeInfo.captchaEnabled">
                <el-input v-model.trim="loginForm.model.code" maxlength="3" size="large" auto-complete="off"
                    placeholder="验证码" style="width: 63%" @keyup.enter="handleLogin">
                    <template #prefix>
                        <svg-icon icon-class="validCode" class="input-icon" />
                    </template>
                </el-input>
                <div class="login-code" v-html="authCodeInfo.imgUrl"
                    @click="useAuthCode.getValidateCode(loginForm.model, true)" />
            </el-form-item>

            <div class="login-tips">
                <el-checkbox v-model="loginForm.model.rememberMe" style="margin: 0px 0px 25px 0px">记住密码</el-checkbox>
                <el-link class="login-tips-link" type="primary" href="/register" target="_blank">去注册账号</el-link>
            </div>

            <el-form-item style="width: 100%">
                <el-button :loading="authCodeInfo.loading" size="large" type="primary" style="width: 100%"
                    @click.prevent="handleLogin">
                    <span v-if="!authCodeInfo.loading">登 录</span>
                    <span v-else>登 录 中...</span>
                </el-button>
            </el-form-item>
        </el-form>

        <div class="el-login-footer">
            <span>Copyright © 2018-2024 nest-admin All Rights Reserved.</span>
        </div>
    </div>
</template>

<script setup>
import useUserStore from '@/store/modules/user'
import useAuthCode from '@/hooks/useAuthCode'
import { sm2Encrypt } from '@/utils/index'
const userStore = useUserStore()
const authCodeInfo = useAuthCode.authCodeInfo
const route = useRoute()
const router = useRouter()
const loginRef = ref()

const loginForm = reactive({
    model: {
        username: '',
        password: '',
        rememberMe: false,
        code: '',
        uuid: ''
    },
    rules: {
        username: [{ required: true, trigger: 'blur', message: '请输入您的账号' }],
        password: [{ required: true, trigger: 'blur', message: '请输入您的密码' }],
        code: [{ required: true, trigger: 'change', message: '请输入验证码' }]
    }
})

const redirect = ref(undefined)

watch(
    route,
    (newRoute) => {
        redirect.value = newRoute.query && newRoute.query.redirect
    },
    { immediate: true }
)

function handleLogin() {
    loginRef.value.validate((valid) => {
        if (valid) {
            authCodeInfo.loading = true
            loginForm.model.uuid = authCodeInfo.uuid
            // 勾选了需要记住密码设置在 cookie 中设置记住用户名和密码，否则移除
            useAuthCode.setUserCookie(loginForm.model)
            // 调用action的登录方法
            userStore
                .login({ ...loginForm.model, password: sm2Encrypt(authCodeInfo.publicKey, loginForm.model.password) })
                .then(() => {
                    router.push({ path: redirect.value || '/' })
                })
                .catch(() => {
                    // 重新获取验证码
                    if (authCodeInfo.captchaEnabled) {
                        useAuthCode.getValidateCode(loginForm.model, true)
                    }
                })
                .finally(() => {
                    authCodeInfo.loading = false
                })
        }
    })
}

useAuthCode.getValidateCode(loginForm.model, false)
loginForm.model = useAuthCode.getUserCookie(loginForm.model)
</script>

<style lang="scss" scoped>
@use '@/assets/styles/login.scss';

.login {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    background: #f0f2f5;
}

.title {
    margin: 0px auto 30px auto;
    text-align: center;
    color: #707070;
}

.login-form {
    border-radius: 6px;
    background: #ffffff;
    width: 400px;
    padding: 25px 25px 5px 25px;

    .input-icon {
        height: 39px;
        width: 14px;
        margin-left: 10px;
    }
}

.login-code {
    width: 35%;
    height: 48px;
    float: right;
    text-align: right;

    img {
        cursor: pointer;
        vertical-align: middle;
    }
}

.el-login-footer {
    height: 40px;
    line-height: 40px;
    position: fixed;
    bottom: 0;
    width: 100%;
    text-align: center;
    color: #909399;
    font-family: Arial;
    font-size: 12px;
    letter-spacing: 1px;
}

.login-tips {
    &-link {
        position: relative;
        top: -3px;
        left: 10px;
        font-size: 13px;
    }
}
</style>
